The baby mama drama boiled over between Kailyn and Jo on Tuesday’s episode of Teen Mom 2, culminating in a call to the cops, with a court date likely to follow as the young parents spar over custody of their son Isaac.

Here’s how it got so ugly, so fast: Jo’s jealousy over Kailyn’s love life — she was seeing a boy behind his back — causes him to kick her out of his parents’ house, where she’d been staying.

“You’ll never be welcome in my house anymore,” Jo told Kailyn. “I don’t even want to catch you on my f—— block. Oh yeah, and you’re a w—-. And all you care about is having a f—— boyfriend and you don’t care about your f—— son.”

When Kailyn enlisted her mother to go to Jo’s house to retrieve her belongings — and her baby — all hell broke loose, as Jo and his mother refused to part with Kailyn’s belongings until she paid back $600 she owed to Jo (she didn’t).

With the two sides not even close to an agreement, Kailyn’s mom summoned police, who told them they couldn’t remove the child from the home without a court order, foreshadowing a custody battle on the horizon between the vengeful exes. Watch the video on RadarOnline.com